In addition to the main part is the tuber, The leaves of sweet potato used as a vegetable. Frozen sweet potato leaves is one of the frozen vegetable products in Vietnam that is exported through many countries.
In traditional medicine, sweet potato leaves have been considered as a medicine, effecting to strengthen health, help enhance eyesight, cure jaundice, irregular menstruation, men and women …
The leaves of sweet potato is better in tubers such as Vitamin B6 in Sweet potato leaves 3 times higher , vitamin C 5 times higher, Viboflavin 10 times higher.
Sweet potatoes are easy to grow, grow fast and have less pests. After one month of planting, You start to harvest, the harvesting time lasts from 4 to 5 months. Due to increasing demand and export, this kind of production is growing more and more
Frozen sweet potato leaves production process
The leaves of sweet potato will be harvested in morning or afternoon, the leaves do not wilt and retain nutrients in this time. The leaves are bundled and shipped immediately to the factory. Workers remove bad leaves, stem and put them into big basket.
The leaves will be soaked and washed with clean water.
After washing, the sweet potato leaves are moved to the slice/ mince area or packing area if it is a frozen sweet potato leaves whole.
The sweet potato leaves cut are packed in plastic with different sizes like 500g, 1kg
Sweet Potato Leaves cut are packed in plastic and will be frozen at a temperature of – 40 to – 35 degrees Celsius
This products have a shelf life of 24 months, if they are stored at -18 degrees Celsius